Nasa's Hubble telescope discovers new Neptune moon

Designated S/2004 N 1, this is the 14th known moon to circle the giant planet
An astronomer studying archived images of Neptune taken by the Hubble Space Telescope has found a 14th moon orbiting the planet, NASA said on Monday.

Estimated to be about 20km in diameter, the moon is located about 65,400 miles from Neptune.
Astronomer Mark Showalter, with the SETI Institute in Mountain View, Calif., was searching Hubble images for moons inside faint ring fragments circling Neptune when he decided to run his analysis program on a broader part of the sky